Listen to Onam Vanne online. Onam Vanne is a Malayalam language song and is sung by P. Jayachandran, K. P. Chandramohan, Ambili and Bichu Thirumala. Onam Vanne, from the album Velluvili, was released in the year 1978. The duration of the song is 5:43. Download Malayalam songs online from JioSaavn.